CN117208182B - Unmanned submarine rudder noise reduction equipment and application method thereof - Google Patents
Unmanned submarine rudder noise reduction equipment and application method thereof Download PDFInfo
- Publication number
- CN117208182B CN117208182B CN202310989209.4A CN202310989209A CN117208182B CN 117208182 B CN117208182 B CN 117208182B CN 202310989209 A CN202310989209 A CN 202310989209A CN 117208182 B CN117208182 B CN 117208182B
- Authority
- CN
- China
- Prior art keywords
- skin
- shell
- movable
- rotating block
- sliding groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000009467 reduction Effects 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims description 26
- 230000007246 mechanism Effects 0.000 claims description 15
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 210000001260 vocal cord Anatomy 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000004177 elastic tissue Anatomy 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical compound C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
Landscapes
- Toys (AREA)
Abstract
The invention provides unmanned submarine rudder noise reduction equipment and a use method thereof, wherein a plurality of devices are arranged on a shell of a rudder at intervals and used for forming a plurality of parallel sound-absorbing belts, and the device comprises a skin, is arranged on the surface of the shell and has elastic stretching performance; at least two movable parts which are arranged in parallel and are mutually clung; a chute is arranged in the shell, and one end of the chute penetrates through the surface of the shell and is communicated with the external environment; the at least two movable parts are arranged in the sliding groove, each movable part moves relative to the shell along the extending direction of the sliding groove, so that one end of at least one movable part facing the outside of the shell moves out of the sliding groove and abuts against the push skin to elastically stretch, and the elastically stretched part of the skin is far away from the surface of the shell and forms an acoustic absorption belt on the surface of the shell; the skin is jacked up through the movable part to form the sound-absorbing band on the surface of the shell, and the height of the sound-absorbing band is adjusted through the ejection height of the movable part, so that the device is suitable for different navigational speed requirements, and stable noise reduction effect is maintained.
Description
Technical Field
The invention relates to the technical field of aircraft noise reduction, in particular to unmanned submarine rudder noise reduction equipment and a using method thereof.
Background
The intensity of hydrodynamic noise of an underwater vehicle is not only highly correlated to the speed of the voyage, but is also affected by the geometry of the vehicle. Due to the operational stability, penetration and structural strength and other functional requirements of the underwater vehicle, its outer geometry is not a regular rotor, mostly with a plurality of tab structures attached to the elongated rotor, wherein the wing profile or wing-like tab occupies the main part of the structure, such as the underwater vehicle rudder. Due to the influence of a plurality of factors such as limited extension length of the protruding body, flow separation at the tail end, transverse flow at the joint of the protruding body and the main boat body and the like, the turbulence of the flow field around the underwater vehicle is aggravated, so that the strength of hydrodynamic noise is greatly improved, and therefore, the reduction of hydrodynamic noise of protruding body structures such as stern rudders and the like is an important way for improving the sound stealth performance of the underwater vehicle.
The technical staff find through long-term research that, as shown in fig. 1, a sound-absorbing band with specific space, height and width can be laid on the rudder, so that the flow field state of a shell around the rudder of the underwater vehicle is effectively improved, the flow excitation vibration of the shell is weakened, and the hydrodynamic noise of the underwater vehicle is reduced.
However, the existing acoustic belts laid on the stern rudders are all fixed, so that the acoustic belts can only have an obvious noise reduction effect on a specific navigational speed, and when the navigational speed of an underwater vehicle is increased or decreased, the noise reduction effect of the acoustic belts can be obviously reduced, and the stable noise reduction effect is difficult to maintain.
Disclosure of Invention
In view of the above, the invention provides a noise reduction device for a bow rudder of an unmanned underwater vehicle and a use method thereof, which are used for solving the problems that the noise reduction device laid on the stern rudder is fixed at present, so that the noise reduction device only has obvious noise reduction effect on a specific navigational speed, and when the navigational speed of the underwater vehicle is increased or decreased, the noise reduction effect of the noise reduction device is obviously reduced, and the stable noise reduction effect is difficult to maintain.
The technical scheme of the invention is realized as follows: the invention provides unmanned submarine rudder noise reduction equipment, which is characterized in that a plurality of devices are arranged on a shell of a rudder at intervals and used for forming a plurality of parallel sound-absorbing belts, and the device comprises a skin, wherein the skin is arranged on the surface of the shell and has elastic stretching performance; at least two movable parts which are arranged in parallel and are mutually clung; wherein, a chute is arranged in the shell, one end of the chute penetrates through the surface of the shell and is communicated with the external environment; at least two movable parts are arranged in the sliding groove, each movable part moves relative to the shell along the extending direction of the sliding groove, so that one end of at least one movable part facing the outside of the shell moves out of the sliding groove and abuts against the elastic stretching of the skin, and the elastic stretching part of the skin is far away from the surface of the shell and forms an acoustic absorption belt on the surface of the shell.
On the basis of the technical scheme, the device preferably further comprises a driving assembly, wherein the driving assembly is used for driving at least one movable part to move or driving all movable parts to synchronously move.
Still further preferably, the driving assembly includes a rotating block which rotates relative to the housing and whose axial direction is a parallel direction of the arrangement directions of the at least two movable portions; the protruding part is arranged on the peripheral wall of the rotating block and synchronously rotates along with the rotating block; the shell is internally provided with a cavity which is positioned at one end of the chute far away from the surface of the shell and is communicated with the chute; the driving component is arranged in the cavity; the end part of the movable part, which is far away from the skin, is inserted into the cavity and is abutted against the peripheral wall of the rotating block; the rotating block rotates to enable the protruding part to be abutted against the insertion end of at least one movable part, and the protruding part pushes the movable part to move towards the skin.
Still further preferably, the protruding portion includes a first protruding block, and an outer peripheral wall thereof is smoothly connected to an outer peripheral wall of the rotating block; the outer peripheral wall of the second protruding block is smoothly connected with the outer peripheral wall of the rotating block and is arranged at intervals with the first protruding block; when the rotating block rotates, the first protruding block is abutted against the insertion end of one of the movable parts, or the second protruding block is abutted against the insertion ends of at least two movable parts.
Still further preferably, the length of the second protruding block in the axial direction of the rotating block is an integer multiple of the length of the first protruding block in the axial direction of the rotating block.
Still further preferably, the maximum thickness of the first protruding block in the radial direction of the rotating block is the same as the maximum thickness of the second protruding block in the radial direction of the rotating block.
Still further preferably, the drive assembly includes at least two sets of protrusions, the maximum thickness of different protrusions along the radial direction of the rotor block being different.
On the basis of the above technical scheme, preferably, two ends of the skin along the arrangement direction of at least two movable parts are respectively arranged on the surface of the shell, the sliding groove is formed between the two ends of the skin, and the movable parts are abutted to push the part between the two ends of the skin to elastically stretch and be far away from the surface of the shell.
Still more preferably, the apparatus further comprises a reel mechanism; wherein, at least one cavity is also arranged in the shell, and the cavity is arranged at one end of the skin; the winding drum mechanism is arranged in the cavity; the end of the skin is inserted into the cavity through the surface of the housing and wound onto the reel mechanism.
On the other hand, the invention also provides a using method of the unmanned submarine rudder noise reduction equipment, which comprises the following using states that firstly, the peripheral wall of the rotating block is abutted against the end part of the movable part far away from the skin, the end part of the movable part facing the skin is positioned in the chute, and the skin is tightly adhered to the surface of the shell; the second state is that the rotating block rotates and drives the first protruding block to synchronously rotate, so that the peripheral wall of the first protruding block is abutted against the end part of one movable part far away from the skin, the movable part is pushed to move towards the skin and move out of the sliding groove towards the end part of the skin, and the movable part is abutted against the end part of the skin to push the skin to be far away from the surface of the shell, so that a sound-absorbing belt is formed; and in a third state, the rotating block rotates and drives the second protruding block to synchronously rotate, so that the peripheral wall of the second protruding block is abutted against the end parts of at least two movable parts far away from the skin, the movable parts are pushed to move towards the skin and move towards the end parts of the skin to the outside of the sliding groove, and the at least two movable parts are abutted against the end parts of the skin to push the skin to be far away from the surface of the shell and change the width of the sound-absorbing belt.
Compared with the prior art, the unmanned submarine rudder noise reduction equipment and the use method thereof have the following beneficial effects:
(1) According to the invention, the movable part jacks up the skin to form the sound-absorbing band on the surface of the shell, and the height of the sound-absorbing band is adjusted through the ejection height of the movable part, so that the device is suitable for different navigational speed requirements, and stable noise reduction effect is maintained.
(2) According to the invention, at least two protruding blocks are arranged on the rotating block, the number of the movable parts jacked by different protruding blocks is different, and the width of the sound-absorbing band is adjusted by jacking different numbers of the movable parts, so that the device is suitable for different navigational speed requirements, and stable noise reduction effect is maintained.
(3) According to the invention, at least two groups of protruding parts are arranged on the rotating block, the thickness of the protruding blocks in the same group of protruding parts is consistent, and the thicknesses of different groups of protruding parts are different, so that the ejection height and ejection number of the movable blocks are adjusted, and the height and width of the sound-absorbing belt are adjusted.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a noise reduction device according to the present invention;
FIG. 2 is a schematic diagram of a noise reducer according to the present invention;
FIG. 3 is a schematic front cross-sectional view of a noise reducer of the present invention;
FIG. 4 is a schematic side cross-sectional view of a noise reducer of the present invention;
fig. 5 is a perspective view of the drive assembly of the present invention.
In the figure: 1. a housing; 101. a chute; 102. a cavity; 103. a chamber; 2. a skin; 3. a movable part; 4. a drive assembly; 41. a rotating block; 42. a protruding portion; 421. a first protruding block; 422. a second protruding block; 5. a reel mechanism; 10. an acoustic band.
Detailed Description
The following description of the embodiments of the present invention will clearly and fully describe the technical aspects of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.
Example 1
As shown in fig. 1, in combination with fig. 2 and 4, the unmanned submersible bow rudder noise reduction device of the invention comprises a skin 2, a movable part 3 and a driving component 4.
Wherein, a plurality of devices are arranged on the shell 1 of the rudder, and the devices are correspondingly used for forming the sound-absorbing belts 10 one by one. A noise reduction groove is formed between adjacent sound attenuation belts 10.
A sliding groove 101 is formed in the shell 1, one end of the sliding groove 101 penetrates through the surface of the shell 1 and is communicated with the external environment, and the sliding groove 101 is used for limiting the moving direction of the movable portion 3, so that the movable portion 3 can jack up the skin 2. The casing 1 is also provided with a cavity 102, and the cavity 102 is positioned at one end of the chute 101 away from the surface of the casing 1 and is communicated with the chute 101.
The skin 2 is laid on the surface of the shell 1 and has elastic stretching performance, and the skin 2 is made of high-elasticity silicon rubber or high-elasticity fiber, such as methyl vinyl silicon rubber or polyether ester elastic fiber and the like. The two ends of the skin 2 along the arrangement direction of the at least two movable parts 3 are respectively arranged on the surface of the shell 1, and the two ends of the skin 2 can be seen to be fixed, and the part between the two ends of the skin 2 can be elastically stretched; the chute 101 is provided between the two ends of the skin 2. It should be noted that the skins 2 of the respective devices may be connected to form a skin whole that covers the entire rudder.
At least two movable parts 3 are arranged in parallel and are mutually clung. At least two movable parts 3 are arranged in the sliding groove 101, each movable part 3 moves relative to the shell 1 along the extending direction of the sliding groove 101, so that at least one movable part 3 moves towards one end outside the shell 1 to the outside of the sliding groove 101, the inner wall of the end skin 2 of the movable part 3 elastically stretches the part between the two ends of the skin 2 and is far away from the surface of the shell 1 to form the sound-absorbing band 10. The movable part 3 is a rod body, and the rod width of the single movable part 3 is 2.5mm.
The noise reduction principle of the acoustic belt 10 is to be described herein, that is, the skin 2 forms the acoustic belt 10 with strip-shaped bulges, the distance between the adjacent acoustic belts 10 is 20mm-30mm, so that the adjacent acoustic belts 10 are clamped into grooves, and the groove structure can effectively improve the flow field state of the shell 1 around the bow rudder or the stern rudder of the underwater vehicle, weaken the flow excitation vibration of the shell 1, and further reduce the hydrodynamic noise of the underwater vehicle. The movable part 3 may thus be a rod as described in the drawings of the present application, or may be an upstanding strip extending along a channel.
The driving component 4 is arranged in the cavity 102, and the driving component 4 is used for driving at least one movable part 3 to move or driving all the movable parts 3 to synchronously move.
It should be noted that, as an application scheme already used in the present application, the driving assembly 4 may be an electric cylinder or an air cylinder, and the function of jacking up the skin 2 is achieved by controlling the extension and retraction of the movable portion 3. However, the skilled person has found that a large number of telescopic mechanisms are required for one-to-one control of the movement of the movable parts 3 in such a solution, which is not only prone to failure but also costly.
For the above reasons, the present application has developed a solution with a simpler driving structure, avoiding the problems of high failure rate and high cost, and as shown in fig. 1, in combination with fig. 5, the driving assembly 4 includes a rotating block 41 and a protruding portion 42.
The rotary block 41 is pivoted relative to the housing 1 and its axial direction is parallel to the arrangement direction of the at least two movable parts 3. The rotating block 41 is cylindrical, the rotating block 41 is sleeved on a rotating shaft, and the rotating shaft rotates through an external driving mechanism.
The protruding portion 42 is provided on the outer peripheral wall of the rotating block 41 and rotates in synchronization with the rotating block 41. By changing the thickness of the protruding portion 42, the ejection height of the movable portion 3 can be adjusted, thereby adjusting the height of the sound damping belt 10.
In this scheme, a plurality of groups of devices are required to be arranged along the extending direction of the sound-absorbing band 10 and the movable part 3 is enabled to jack up the skin 2 at the same time to form the sound-absorbing band 10, and the rotating shafts of the rotating blocks 41 of each group of devices can be driven by the same driving mechanism to rotate through a transmission mechanism, such as a belt transmission mode, so that the occurrence of failure rate is greatly reduced and the cost is reduced.
Meanwhile, in order to achieve adjustment of the width of the vocal cord 10, the protruding portion 42 includes a first protruding block 421 and a second protruding block 422.
The first protruding block 421 and the second protruding block 422 may be semi-cylindrical or semi-elliptical. The outer peripheral wall of the first protruding block 421 is smoothly connected to the outer peripheral wall of the rotating block 41. The second protruding block 422 has a peripheral wall smoothly connected to the peripheral wall of the rotary block 41 and is spaced apart from the first protruding block 421.
The end of the movable portion 3 remote from the skin 2 is inserted into the cavity 102 and abuts against the outer peripheral wall of the rotating block 41.
The rotating block 41 rotates to enable the protruding part 42 to abut against the insertion end of at least one movable part 3, and the protruding part 42 pushes the movable part 3 to move towards the skin 2.
When the rotating block 41 rotates, the first protruding block 421 is brought into contact with the insertion end of one of the movable portions 3, or the second protruding block 422 is brought into contact with the insertion ends of at least two movable portions 3.
Since the first protruding block 421 can only jack up one movable portion 3 and the second protruding block 422 can jack up at least two movable portions 3, the number of the movable portions 3 jacked up by the first protruding block 421 and the second protruding block 422 is different, so when the rotating block 41 rotates to switch the first protruding block 421 and the second protruding block 422 to jack up the movable portions 3 respectively, the width of the skin 2 jacked up by the different number of the movable portions 3 is also changed, thereby realizing the adjustment of the width of the vocal cords 10.
The application method of the unmanned submarine rudder noise reduction equipment provided by the invention adopts the noise reduction equipment of the embodiment, and comprises the following application states:
in the first state, the outer peripheral wall of the rotating block 41 abuts against the end of the movable portion 3 away from the skin 2, and the end of the movable portion 3 facing the skin 2 is located in the chute 101. In this state, the skin 2 is tightly adhered to the surface of the case 1.
In the second state, the rotating block 41 rotates and drives the first protruding block 421 to synchronously rotate, so that the peripheral wall of the first protruding block 421 abuts against the end part of one of the movable parts 3, which is far away from the skin 2, to push the movable part 3 to move towards the skin 2 and the end part of the movable part 3 towards the skin 2 to move outside the sliding groove 101, and the end part of the movable part 3 towards the skin 2 abuts against the surface of the pushing skin 2, which is far away from the shell 1, to form the sound-absorbing belt 10. The height of the vocal cords 10 can be adjusted by changing the thickness of the first protruding block 421 in this state.
In the third state, the rotating block 41 rotates and drives the second protruding block 422 to rotate synchronously, so that the peripheral wall of the second protruding block 422 abuts against the end part of the at least two movable parts 3 away from the skin 2, the movable parts 3 are pushed to move towards the skin 2, the movable parts 3 move towards the end part of the skin 2 to the outside of the sliding groove 101, and the at least two movable parts 3 abut against the end part of the skin 2 to push the skin 2 away from the surface of the shell 1. The width of the vocal cords 10 can be adjusted by increasing the number of jack-up movable portions 3 by switching the first protruding pieces 421 to the second protruding pieces 422 in this state.
The test is carried out by applying the embodiment to a certain type of test underwater vehicle, and the result is as follows: when the navigational speed of the underwater vehicle is 10 knots, the height of the sound-absorbing band 10 is 4mm-6mm, the width is 2.5mm, and the hydrodynamic noise can be reduced by 2.5dB-3dB; when the navigational speed of the underwater vehicle is 12 knots, the height of the sound-absorbing band 10 is 8mm-10mm, the width is 2.5mm, and the hydrodynamic noise can be reduced by about 3.2 dB-3.5 dB; when the navigational speed of the underwater vehicle is 18 knots, the height of the sound-absorbing band 10 is 12mm-14mm, and the width is 5mm, so that the hydrodynamic noise can be reduced by about 3.8dB-4.2dB; when the navigational speed of the underwater vehicle is 22 knots, the height of the sound-absorbing band 10 is 16mm-18mm, the width is 5mm, and the hydrodynamic noise can be reduced by about 4.5dB-5dB.
Example two
In order to achieve the adjustment of the height of the sound damping belt 10 on the basis of the first embodiment, the driving assembly 4 comprises at least two sets of protrusions 42, the maximum thickness of the different protrusions 42 in the radial direction of the rotating block 41 being different.
The length of the second protruding block 422 in the axial direction of the rotating block 41 is an integer multiple of the length of the first protruding block 421 in the axial direction of the rotating block 41. In the drawings of the present embodiment, the number of the movable portions 3 in each device is two, so that the width of the sound damping belt 10 is changed into two; in practice, the number of movable parts 3 in each device can be increased, so that the sound-absorbing band 10 has more width variation; while each projection 42 also comprises more than two projecting blocks, the number of projecting blocks and the number of movable parts 3 are the same.
The maximum thickness of the first protruding block 421 in the radial direction of the rotating block 41 in the same set of protruding portions 42 is the same as the maximum thickness of the second protruding block 422 in the radial direction of the rotating block 41.
Example III
As shown in fig. 1, in combination with fig. 3, a reel mechanism 5 is also included.
Wherein, the shell 1 is also provided with at least one cavity 103, and the cavity 103 is arranged at one end of the skin 2; the spool mechanism 5 is disposed within the chamber 103.
The end of the skin 2 is inserted into the cavity 103 through the surface of the housing 1 and wound around the reel mechanism 5.
When the state is switched from the second state or the third state to the initial state, the winding drum mechanism 5 can rewind the skin 2, so that the skin 2 drives the movable part 3 to return to the sliding groove 101, and the skin 2 is tightly adhered to the surface of the shell 1 again.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The unmanned submersible bow rudder noise reduction equipment is characterized in that at least two unmanned submersible bow rudder noise reduction equipment are arranged on a shell (1) of a bow rudder at intervals and used for forming a plurality of parallel sound attenuation belts (10), and the unmanned submersible bow rudder noise reduction equipment comprises the following components:
the skin (2) is laid on the surface of the shell (1) and has elastic stretching performance;
at least two movable parts (3) which are arranged in parallel and are mutually clung;
a sliding groove (101) is formed in the shell (1), and one end of the sliding groove (101) penetrates through the surface of the shell (1) to be communicated with the external environment;
at least two movable parts (3) are arranged in a sliding groove (101), each movable part (3) moves relative to a shell (1) along the extending direction of the sliding groove (101), so that at least one movable part (3) moves towards one end outside the shell (1) to the outside of the sliding groove (101) and abuts against a pushing skin (2) to stretch elastically, and the elastically stretched part of the skin (2) is far away from the surface of the shell (1) and forms a sound attenuation belt (10) on the surface of the shell (1).
2. The unmanned submersible bow rudder noise reducing device of claim 1, further comprising:
and the driving assembly (4) is used for driving at least one movable part (3) to move or driving all the movable parts (3) to synchronously move.
3. The unmanned submersible bow rudder noise reducing device according to claim 2, wherein: the driving assembly (4) comprises a driving device,
a rotating block (41) which rotates relative to the shell (1) and the axial direction of which is the parallel direction of the arrangement direction of at least two movable parts (3);
a protruding part (42) which is provided on the outer peripheral wall of the rotating block (41) and rotates synchronously with the rotating block (41);
a cavity (102) is further formed in the shell (1), and the cavity (102) is located at one end, far away from the surface of the shell (1), of the sliding groove (101) and is communicated with the sliding groove (101);
the driving component (4) is arranged in the cavity (102);
the end part of the movable part (3) far away from the skin (2) is inserted into the cavity (102) and is abutted against the peripheral wall of the rotating block (41);
the rotating block (41) rotates to enable the protruding portion (42) to be abutted against the insertion end of at least one movable portion (3), and the protruding portion (42) pushes the movable portion (3) to move towards the skin (2).
4. An unmanned submersible bow rudder noise reducing device according to claim 3, wherein: the projection (42) comprises a plurality of projections,
a first protruding block (421) having an outer peripheral wall smoothly connected to an outer peripheral wall of the rotating block (41);
the second protruding block (422) is smoothly connected with the outer peripheral wall of the rotating block (41) and is arranged at intervals with the first protruding block (421);
when the rotating block (41) rotates, the first protruding block (421) is abutted against the insertion end of one of the movable parts (3), or the second protruding block (422) is abutted against the insertion ends of at least two movable parts (3).
5. The unmanned submersible bow rudder noise reducing device according to claim 4, wherein: the length of the second protruding block (422) along the axial direction of the rotating block (41) is an integral multiple of the length of the first protruding block (421) along the axial direction of the rotating block (41).
6. The unmanned submersible bow rudder noise reducing device according to claim 4, wherein: the maximum thickness of the first protruding block (421) along the radial direction of the rotating block (41) is the same as the maximum thickness of the second protruding block (422) along the radial direction of the rotating block (41).
7. The unmanned submersible bow rudder noise reducing device according to claim 6, wherein: the drive assembly (4) comprises at least two sets of protrusions (42), the maximum thickness of the protrusions (42) along the radial direction of the rotating block (41) being different.
8. The unmanned submersible bow rudder noise reducing device according to claim 1, wherein: the two ends of the skin (2) along the arrangement direction of the at least two movable parts (3) are respectively arranged on the surface of the shell (1), the sliding groove (101) is formed between the two ends of the skin (2), and the movable parts (3) are propped against and push the part between the two ends of the skin (2) to elastically stretch and keep away from the surface of the shell (1).
9. The unmanned submersible bow rudder noise reducing device of claim 8, further comprising:
a reel mechanism (5);
wherein, at least one cavity (103) is also arranged in the shell (1), and the cavity (103) is arranged at one end of the skin (2);
the reel mechanism (5) is arranged in the cavity (103);
the end of the skin (2) is inserted into the cavity (103) through the surface of the housing (1) and wound on the reel mechanism (5).
10. A method of using the unmanned submersible bow rudder noise reduction device, employing the noise reduction device of any one of claims 3 to 7, comprising the following usage states:
in the first state, the peripheral wall of the rotating block (41) is abutted against the end part of the movable part (3) far away from the skin (2), the end part of the movable part (3) facing the skin (2) is positioned in the sliding groove (101), and the skin (2) is tightly adhered to the surface of the shell (1);
the second state is that the rotating block (41) rotates and drives the first protruding block (421) to synchronously rotate, so that the peripheral wall of the first protruding block (421) abuts against the end part of one of the movable parts (3) far away from the skin (2), the movable part (3) is pushed to move towards the skin (2) and the movable part (3) is pushed to move towards the end part of the skin (2) to the outside of the sliding groove (101), and the movable part (3) abuts against the end part of the skin (2) to push the skin (2) far away from the surface of the shell (1) and form the sound attenuation belt (10);
and in a third state, the rotating block (41) rotates and drives the second protruding block (422) to synchronously rotate, so that the peripheral wall of the second protruding block (422) is abutted against the end parts of at least two movable parts (3) away from the skin (2), the movable parts (3) are pushed to move towards the skin (2) and move towards the end parts of the skin (2) to the outside of the sliding groove (101), and at least two movable parts (3) are abutted against the end parts of the skin (2) to push the skin (2) away from the surface of the shell (1) and change the width of the sound-absorbing band (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310989209.4A CN117208182B (en) | 2023-08-08 | 2023-08-08 | Unmanned submarine rudder noise reduction equipment and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310989209.4A CN117208182B (en) | 2023-08-08 | 2023-08-08 | Unmanned submarine rudder noise reduction equipment and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117208182A CN117208182A (en) | 2023-12-12 |
| CN117208182B true CN117208182B (en) | 2024-03-08 |
Family
ID=89041474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310989209.4A Active CN117208182B (en) | 2023-08-08 | 2023-08-08 | Unmanned submarine rudder noise reduction equipment and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117208182B (en) |
Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AR204459A1 (en) * | 1974-08-08 | 1976-02-06 | Becker Kg J | PROPELLER ARRANGEMENT FOR BOATS OR OTHER FLOATING OR SUBMERGED BODIES |
| US5266245A (en) * | 1990-04-10 | 1993-11-30 | Vickers Shipbuilding & Engineering Ltd. | Methods for applying acoustic coverings to surfaces of a marine vessel |
| GB9802597D0 (en) * | 1998-02-07 | 1998-04-01 | Hurel Dubois Uk Ltd | Panels and structures |
| WO1998033703A1 (en) * | 1997-01-30 | 1998-08-06 | Kvaerner Asa | Rudder |
| WO2004108525A1 (en) * | 2003-03-03 | 2004-12-16 | Flexsys, Inc. | Adaptive compliant wing and rotor system |
| KR20070081985A (en) * | 2006-02-14 | 2007-08-20 | 황보국정 | Buoy made from stanless steel |
| CN101633403A (en) * | 2009-08-26 | 2010-01-27 | 哈尔滨工业大学 | Undulation propelling mechanism driven by shape memory alloy wires |
| CN103600809A (en) * | 2013-10-30 | 2014-02-26 | 江苏科技大学 | Vibration damping and noise reducing flexible sandwich plate for ship structure |
| CN103950527A (en) * | 2014-05-09 | 2014-07-30 | 兰州交通大学 | Ray pectoral fin-imitated piezoelectric coupling propulsive mechanism |
| CN104309778A (en) * | 2014-10-31 | 2015-01-28 | 浙江大学 | Fin stabilizer with adjustable arc |
| CN106951623A (en) * | 2017-03-14 | 2017-07-14 | 中国人民解放军海军工程大学 | Pump-jet propulsor model and its method for designing with helmholtz resonance chamber |
| CN108557043A (en) * | 2018-03-15 | 2018-09-21 | 哈尔滨工程大学 | A kind of micro- buoyant raft array covering with reducing noise and drag function |
| CN108622351A (en) * | 2018-06-21 | 2018-10-09 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of novel belt folds the submersible of hang gliding |
| CN109911137A (en) * | 2017-12-13 | 2019-06-21 | 中航通飞研究院有限公司 | A kind of spill connection bumper assembly of seaplane |
| IT201800008007A1 (en) * | 2018-08-09 | 2020-02-09 | Giovanni Puntello | SAIL WITH STRAIGHTENING EFFECT. |
| CN113879453A (en) * | 2021-10-20 | 2022-01-04 | 哈尔滨工程大学 | Shield scale tile-covering type resistance-reducing noise-reducing skin based on micro Stewart mechanism |
| CN115195977A (en) * | 2022-07-11 | 2022-10-18 | 中国船舶重工集团公司第七一九研究所 | 4D prints flexible screw |
| CN218431684U (en) * | 2022-08-16 | 2023-02-03 | 上海贝卫新材料科技有限公司 | Anechoic tile |
| CN116118966A (en) * | 2023-03-31 | 2023-05-16 | 中国船舶集团有限公司综合技术经济研究院 | Adjustable bulb for test ship model and adjusting method thereof |
| CN116161163A (en) * | 2023-02-16 | 2023-05-26 | 哈尔滨工程大学 | Intelligent variable-rigidity flexible drag-reduction noise-reduction skin based on adjustable tensioning integral structure |
| CN116279967A (en) * | 2023-03-31 | 2023-06-23 | 哈尔滨工程大学 | Adjustable-impedance flexible drag-reduction noise-reduction skin based on multilayer variable-stiffness units |
-
2023
- 2023-08-08 CN CN202310989209.4A patent/CN117208182B/en active Active
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AR204459A1 (en) * | 1974-08-08 | 1976-02-06 | Becker Kg J | PROPELLER ARRANGEMENT FOR BOATS OR OTHER FLOATING OR SUBMERGED BODIES |
| US5266245A (en) * | 1990-04-10 | 1993-11-30 | Vickers Shipbuilding & Engineering Ltd. | Methods for applying acoustic coverings to surfaces of a marine vessel |
| WO1998033703A1 (en) * | 1997-01-30 | 1998-08-06 | Kvaerner Asa | Rudder |
| GB9802597D0 (en) * | 1998-02-07 | 1998-04-01 | Hurel Dubois Uk Ltd | Panels and structures |
| WO2004108525A1 (en) * | 2003-03-03 | 2004-12-16 | Flexsys, Inc. | Adaptive compliant wing and rotor system |
| KR20070081985A (en) * | 2006-02-14 | 2007-08-20 | 황보국정 | Buoy made from stanless steel |
| CN101633403A (en) * | 2009-08-26 | 2010-01-27 | 哈尔滨工业大学 | Undulation propelling mechanism driven by shape memory alloy wires |
| CN103600809A (en) * | 2013-10-30 | 2014-02-26 | 江苏科技大学 | Vibration damping and noise reducing flexible sandwich plate for ship structure |
| CN103950527A (en) * | 2014-05-09 | 2014-07-30 | 兰州交通大学 | Ray pectoral fin-imitated piezoelectric coupling propulsive mechanism |
| CN104309778A (en) * | 2014-10-31 | 2015-01-28 | 浙江大学 | Fin stabilizer with adjustable arc |
| CN106951623A (en) * | 2017-03-14 | 2017-07-14 | 中国人民解放军海军工程大学 | Pump-jet propulsor model and its method for designing with helmholtz resonance chamber |
| CN109911137A (en) * | 2017-12-13 | 2019-06-21 | 中航通飞研究院有限公司 | A kind of spill connection bumper assembly of seaplane |
| CN108557043A (en) * | 2018-03-15 | 2018-09-21 | 哈尔滨工程大学 | A kind of micro- buoyant raft array covering with reducing noise and drag function |
| CN108622351A (en) * | 2018-06-21 | 2018-10-09 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of novel belt folds the submersible of hang gliding |
| IT201800008007A1 (en) * | 2018-08-09 | 2020-02-09 | Giovanni Puntello | SAIL WITH STRAIGHTENING EFFECT. |
| CN113879453A (en) * | 2021-10-20 | 2022-01-04 | 哈尔滨工程大学 | Shield scale tile-covering type resistance-reducing noise-reducing skin based on micro Stewart mechanism |
| CN115195977A (en) * | 2022-07-11 | 2022-10-18 | 中国船舶重工集团公司第七一九研究所 | 4D prints flexible screw |
| CN218431684U (en) * | 2022-08-16 | 2023-02-03 | 上海贝卫新材料科技有限公司 | Anechoic tile |
| CN116161163A (en) * | 2023-02-16 | 2023-05-26 | 哈尔滨工程大学 | Intelligent variable-rigidity flexible drag-reduction noise-reduction skin based on adjustable tensioning integral structure |
| CN116118966A (en) * | 2023-03-31 | 2023-05-16 | 中国船舶集团有限公司综合技术经济研究院 | Adjustable bulb for test ship model and adjusting method thereof |
| CN116279967A (en) * | 2023-03-31 | 2023-06-23 | 哈尔滨工程大学 | Adjustable-impedance flexible drag-reduction noise-reduction skin based on multilayer variable-stiffness units |
Non-Patent Citations (2)
| Title |
|---|
| 一体化复合材料上层建筑结构设计优化;于辉;陈志鹏;周芸;郭占一;;中国造船(第02期);全文 * |
| 复材蒙皮的硬涂层阻尼减振设计与优化方法;张波成;北京航空航天大学学报;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117208182A (en) | 2023-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN117208182B (en) | Unmanned submarine rudder noise reduction equipment and application method thereof | |
| US5254809A (en) | Segmented flexible housing | |
| CN1119684C (en) | Optical fiber cable and method for mfg. same | |
| KR101523900B1 (en) | Roller apparatus for cable tray | |
| KR100568303B1 (en) | A compact drive unit for an antenna of a mobile phone | |
| CN106786191B (en) | A kind of bottom cable laying device | |
| FR2360797A1 (en) | Tensile shock absorber for connecting in mooring cable - has pressure elements separated by resiliently compressible buffers in chamber | |
| ITBO20120587A1 (en) | HANDLING SYSTEM FOR INTERFACE DEVICES WITH THE OUTDOOR ENVIRONMENT OF SUBMERSIBLE | |
| JP6590146B2 (en) | Steering device, sailing body | |
| US20200088278A1 (en) | Drive Mechanism For Telescopic Linear Actuator | |
| WO2014036596A1 (en) | Vibration isolation section | |
| SU1594067A1 (en) | Arrangement for turning screw propeller blades | |
| CN219492706U (en) | Mute fan for ship | |
| CN114148833B (en) | Curved surface screen device and adjusting method | |
| MX2022006210A (en) | Generator of acoustic waves. | |
| KR20160028184A (en) | Underwater propulsion apparatus | |
| KR102566360B1 (en) | Sliding bracket device for guide motor | |
| CN110817528B (en) | Rapid conversion control method and system for paper receiving machine unfolding wheel | |
| CN220616144U (en) | Life buoy convenient to discernment | |
| CN115359718B (en) | Reel structure, reel screen terminal and screen display area switching method | |
| CN221338455U (en) | High-speed stable electric parallel clamping jaw | |
| CN220452320U (en) | Noise elimination device of ship fan | |
| CN220563973U (en) | Stabilizing device for cable winding | |
| RU2783719C1 (en) | Propulsion and propulsion installation of underwater vehicle | |
| CN116572516B (en) | Film stretching device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |